I disagree with you 8v. Not that it cannot be done, but if you are wicked retarded you will have super high EGT. If you are too advanced you will increase cylinder pressure and too much could actually bend a rod, with a ton of fuel. Also, even if these pumps have 200,000 miles on them they are usually ok enough as when they start running poorly they will end up at a bosch rebuild center. I would think that there are pumps that are x spec from the factory and some that are x-.002 spec from the factory as there is a range of what is good. Without tracking the pump from new there is really no way to tell. Obviously if you have a pump with little to no internal pressure then it wasn't that way from the factory and is one you could time as needed to get it to run. I think Libby has the best method of the timing light. But I think some sort of deal with a number to set a base on is needed, therefore the tools are one of them I call a must have.
If you want to mark a line or something the way I would do it is mark a line at .080 and one at 1.20. Then you could be in between that and OK for the most part. But hillbillying it up and just cranking away with a mark that seems ok because it ran good I personally cannot endorse. You could end up with timing in the 2.05 range < poke at 8v LOL
Almost nothing in this post is true, the rest is exagerated to try to make your point make sense.
I said almost nothing because if you are "wicked retarded" might actually be a valid excuse to
NEED a dial gauge. Maybe.
What does mark a line at .080 and 1.20 mean? Where would these lines be marked?
Twisting your words to make a point:
"But hillbillying it up and just cranking away with a
number that seems ok because it ran good I personally cannot endorse. "
What's the difference between a mark and a number? Most people pick a dial gauge number because it's within a range, not because of how well it runs.
If it runs good indicate that location, weither it's a number or a mark, change it and see if it runs better.
I have hillbilly tuned my car for about a year and was satisfied with the mileage and the performance but now that I own a gauge it is even better.
(Edit: gave wrong guy credit for quote) ORCoaster, What changed? How did using a gauge make it run better? What's your definition of hillbily tuning? Some people think it's turning the pump while it's running, others realise you need to drive it, move it, drive it, move it, until it's running the best it can.
If you have a dial gauge and like to use it I understand but it isn't needed to get the engine running or tune it and I don't see how it can make the engine run better than a proper hillbilly tune.
I'd love to tie a pulse detector and a couple other sensors to a computer and have it plot the timing curve.
Topic: Is it possible to time the injection pump without a dial indicator?? (Read 33260 times)
